ORU Microbiology Summer 3 question
with answers 2021/2022 grade A+
Definition of Metabolism – ANSWER The collection of controlled biochemical reactions
within the cells of an organism
Guiding Principles or metabolism - ANSWER1. Every cell acquires nutrients
2. metabolism requires energy from light or from catabolism of nutrients
3. Energy is stored as ATP
Purpose of bacteria – ANSWER Eat> Grow> Multiply
ATP – ANSWER Universal currency of energy
Collision Theory – ANSWER States that chemical reactions can occur when atoms,
ions, and molecules collide
Activation Energy – ANSWER is needed to disrupt electronic configurations
Reaction rate – ANSWER is the frequency of collisions with enough energy to bring
about a reaction; can be increased by increasing temp or pressure
Enzymes – ANSWER are organic catalyst
Oxidation and Reduction Reactions - ANSWERNADH, NADPH, FADH2
Naming and classification of Enzymes - ANSWER1. Must end in -ase
2. Must include the substrate that the enzyme acts upon
3. Mode of action- 6 classes
Know 2 enzyme classifications and their reactions - ANSWER1. Hydrolase- hydrolysis
2. Ligase- joining 2 or more molecules
2 types of enzymes - ANSWER1. proteins (most)
2. Apoenzymes (not complete, need help)
2 examples of cofactors – ANSWER Zinc, copper
2 examples of coenzymes - ANSWERFAD, NAD
Active Site – ANSWER Binds to Substrate ONLY
Allosteric – ANSWER Binds to regulator molecules, NEVER substrate
Holoenzymes – ANSWER "Complete enzyme"
with answers 2021/2022 grade A+
Definition of Metabolism – ANSWER The collection of controlled biochemical reactions
within the cells of an organism
Guiding Principles or metabolism - ANSWER1. Every cell acquires nutrients
2. metabolism requires energy from light or from catabolism of nutrients
3. Energy is stored as ATP
Purpose of bacteria – ANSWER Eat> Grow> Multiply
ATP – ANSWER Universal currency of energy
Collision Theory – ANSWER States that chemical reactions can occur when atoms,
ions, and molecules collide
Activation Energy – ANSWER is needed to disrupt electronic configurations
Reaction rate – ANSWER is the frequency of collisions with enough energy to bring
about a reaction; can be increased by increasing temp or pressure
Enzymes – ANSWER are organic catalyst
Oxidation and Reduction Reactions - ANSWERNADH, NADPH, FADH2
Naming and classification of Enzymes - ANSWER1. Must end in -ase
2. Must include the substrate that the enzyme acts upon
3. Mode of action- 6 classes
Know 2 enzyme classifications and their reactions - ANSWER1. Hydrolase- hydrolysis
2. Ligase- joining 2 or more molecules
2 types of enzymes - ANSWER1. proteins (most)
2. Apoenzymes (not complete, need help)
2 examples of cofactors – ANSWER Zinc, copper
2 examples of coenzymes - ANSWERFAD, NAD
Active Site – ANSWER Binds to Substrate ONLY
Allosteric – ANSWER Binds to regulator molecules, NEVER substrate
Holoenzymes – ANSWER "Complete enzyme"
